That Apple has claimed patent rights to the rectangle itself.

FORBES: Apple Claims Patent Rights To The Rectangle

Teva initially claimed the patent was invalid due to obviousness, but eventually changed its defense to inequitable conduct.

FORBES: Teva Agrees To End IP Suit Over Aricept Patent

AstraZeneca settled a lawsuit that claimed Actavis violated the patent on its best-selling Crestor cholesterol pill.

FORBES: AstraZeneca & A Pay-To-Delay Deal The FTC Would Not Like